The Unofficial Mamod and Other Steam Forum

tmuir · Posted: Tue Jul 14, 2009 3:37 pm Post subject: Renown Rollers restoration

Whilst I was in the UK Kritika managed to win himself a Renown roller off ebay UK.

It was in pretty sad state but it did have the original rear wheels which mine does not.
A deal was struck and the roller was sent to me for restoration and I got to use the rear wheels to make copies for myself.

I will be sending the wheels and other cast parts to Xchainsaw to make copies of for himself and for the restorations in the near future.

It was funnny how things work out as the day the roller arrived where I was staying I was going to visit Rob from the HMEM forum and have a try at casting. So within 10 hours of me receiving the roller I had cast myself copies of the wheels for mine.

Here are the 2 rollers side by side and a small collection of parts infront of them I already had to start the restoration of both rollers.

There is a lot to be done so this won't be a quick job but expect to see steady updates in this thread.
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A nice example of an Australian made Scorpion Donkey Engine

scalex · Posted: Tue Jul 14, 2009 6:28 pm Post subject:

thats a good start with the parts... and don't they look great side by side

Atticman · Posted: Tue Jul 14, 2009 9:27 pm Post subject:

Really looking foreward to progress on this one Tony

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MamodFan · Hero Steamer Joined: 23 Nov 2006 Posts: 1647

Those Renowns really do look "right"
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Kritika · Posted: Wed Jul 15, 2009 10:22 pm Post subject:

Oh they really look great side by side don’t they?

It’s amazing to think that one day in the distant future we could see one of your famous videos of them both steaming together.

Its looking good Tony.....

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tmuir · Posted: Thu Jul 16, 2009 1:01 am Post subject:

That will be some time off.
I've had to work 2 nights this week so haven't been in my workshop since I took these photos.
I hope to remove the boiler from the chassis tonight so I can get a better look at what needs doing.
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A nice example of an Australian made Scorpion Donkey Engine

Wallace · Posted: Thu Jul 16, 2009 5:18 am Post subject:

Look forward to seeing it happen. They are such nice looking engines
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Les · Posted: Thu Jul 16, 2009 5:58 am Post subject:

It will be great to see both of those running together.

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xlchainsaw · Posted: Thu Jul 16, 2009 1:08 pm Post subject:

this is terrific! rob did a great job on the wheels and im glad you got to see how easy it is.

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difficult things done straight away...the impossible takes me a little longer

tmuir · Posted: Thu Jul 16, 2009 2:28 pm Post subject:

TE1DRIVER · Posted: Thu Jul 16, 2009 2:41 pm Post subject:

wow thats immense good job!

tmuir · Posted: Thu Jul 16, 2009 3:42 pm Post subject:

My internet was playing up again earlier this evening so I decided to go out into the workshop.

Kritika's roller has had a hard life and has been restored atleast once before. A bush has been fitted to the engine frame and then soldered in place to the frame and chassis, so this had to be desoldered to remove the boiler.

These two holes should be the same size but it can be seen how the hole for the crankshaft has been drilled out to take the bush.

Here is the bush still in the engine frame. The frame hadn't been cleaned properly so the bush wasn't soldered in very well. As the frame has also been drilled to take the bush I've decided to keep it in. I just cleaned it up and resoldered it back into the engine frame.

Now another mod that was made was the exhaust pipe.
This had to go as it is smaller diameter than the steam pipe so would hinder performance. It also has a sharp kink on the bottom right plus any condensate would drip back down the flue onto the wick burner. ALso notice how the whistle pipe is missing. The pipe has been removed and a bush soldered in place and a brass screw put into it. This will stay unless we manage to find an original whistle.

Exhaust pipe gone. Not sure what I'm going to do about the hole in the chimney yet.

Don't know what happened here but it all will need to be replaced except the trunnion bolt and cylinder faceplate. Check out that home made piston rod.

Even the spring is wrong and the nut is not the correct thread.

On the left is the overflow plug from the boiler which is missing it's T bar. On the right is one of my repro ones.

I was just going to fit the repro one but realised the original one was in good enough shape that it just needed a new T bar.
Here it is with it new T bar back on the boiler.

Not much really done tonight, it was more to just try and figure out what I needed to do. Next job is a new cylinder and piston.
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A nice example of an Australian made Scorpion Donkey Engine

Les · Posted: Thu Jul 16, 2009 3:56 pm Post subject:

A small start but a start indeed.

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xlchainsaw · Posted: Fri Jul 17, 2009 8:55 am Post subject:

its a great start. ......about the whistle.... what about modifying a te1 whistle??? its roughly the right size...replace the "handle" ..maybe make the whistle "bell/pipe "slighty longer... if you didnt know better!!!!!!!???? it would be a close look alike without much work

i might have a spare te1 whistle if it was going to be used as such.

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tmuir · Posted: Fri Jul 17, 2009 10:55 am Post subject:

We have plans to get an original Renown whistle but before that happens want to make sure I can get the rest working.
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A nice example of an Australian made Scorpion Donkey Engine